A new microphysical cirrus model to simulate ice crystal nucleation, depositional growth, and gravitational settling is described. The model tracks individual simulation ice particles in a vertical column of air and allows moisture and heat profiles to be affected by turbulent diffusion. Ice crystal size- and supersaturation-dependent deposition coefficients are employed in a one-dimensional model framework. This enables the detailed simulation of microphysical feedbacks influencing the outcome of ice nucleation processes in cirrus. The use of spheroidal water vapor fluxes enables the prediction of primary ice crystal shapes once microscopic models describing the vapor uptake on the surfaces of cirrus ice crystals are better constrained. Two applications addressing contrail evolution and cirrus formation demonstrate the potential of the model for advanced studies of aerosol-cirrus interactions. It is shown that supersaturation in, and microphysical and optical properties of, cirrus are affected by variable deposition coefficients. Vertical variability in ice supersaturation, ice crystal sedimentation, and high turbulent diffusivity all tend to decrease homogeneously nucleated ice number mixing ratios over time, but low ice growth efficiencies counteract this tendency. Vertical mixing induces a tendency to delay the onset of homogeneous freezing. In situations of sustained large-scale cooling, natural cirrus clouds may often form in air surrounding persistent contrails.
机构:
Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Ma, Po-Lun
Rasch, Philip J.
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机构:
Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Rasch, Philip J.
Wang, Minghuai
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机构:
Nanjing Univ, Inst Climate & Global Change Res, Nanjing 210008, Jiangsu, Peoples R China
Nanjing Univ, Sch Atmospher Sci, Nanjing 210008, Jiangsu, Peoples R China
Jiangsu Collaborat Innovat Ctr Climate Change, Nanjing, Jiangsu, Peoples R ChinaPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Wang, Minghuai
Wang, Hailong
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机构:
Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Wang, Hailong
Ghan, Steven J.
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机构:
Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Ghan, Steven J.
Easter, Richard C.
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Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Easter, Richard C.
Gustafson, William I., Jr.
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机构:
Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Gustafson, William I., Jr.
Liu, Xiaohong
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机构:
Univ Wyoming, Dept Atmospher Sci, Laramie, WY 82071 USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Liu, Xiaohong
Zhang, Yuying
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机构:
Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
Zhang, Yuying
Ma, Hsi-Yen
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机构:
Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USAPacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
机构:
Univ Calif San Diego, Scripps Inst Oceanog, Ctr Atmospher Sci, La Jolla, CA 92093 USAUniv Calif San Diego, Scripps Inst Oceanog, Ctr Atmospher Sci, La Jolla, CA 92093 USA
Feng, Yan
Ramanathan, V.
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Univ Calif San Diego, Scripps Inst Oceanog, Ctr Atmospher Sci, La Jolla, CA 92093 USAUniv Calif San Diego, Scripps Inst Oceanog, Ctr Atmospher Sci, La Jolla, CA 92093 USA
Ramanathan, V.
TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY,
2010,
62
(01):
: 69
-
86
机构:
Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
Lawrence Livermore Natl Lab, Livermore, CA 94550 USAUniv Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
Terai, C. R.
Pritchard, M. S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USAUniv Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
Pritchard, M. S.
Blossey, P.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USAUniv Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
Blossey, P.
Bretherton, C. S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USAUniv Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
机构:
N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USAN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA
He, Jian
Zhang, Yang
论文数: 0引用数: 0
h-index: 0
机构:
N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USAN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA
Zhang, Yang
Glotfelty, Tim
论文数: 0引用数: 0
h-index: 0
机构:
N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USAN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA
Glotfelty, Tim
He, Ruoying
论文数: 0引用数: 0
h-index: 0
机构:
N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USAN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA
He, Ruoying
Bennartz, Ralf
论文数: 0引用数: 0
h-index: 0
机构:
Vanderbilt Univ, Dept Earth & Environm Sci, Nashville, TN 37235 USA
Univ Wisconsin, Dept Space Sci, Madison, WI USA
Univ Wisconsin, Ctr Engn, Madison, WI USAN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA
Bennartz, Ralf
Rausch, John
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USAN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA
Rausch, John
Sartelet, Karine
论文数: 0引用数: 0
h-index: 0
机构:
Univ Paris Est, CEREA Atmospher Environm Ctr, Joint Lab, Ecole Ponts ParisTech, Marne La Vallee, France
Univ Paris Est, EDF R&D, Marne La Vallee, FranceN Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA